Automatic fire-extinguisher.



F. J. QUICK. AUTOMATIC FIRE BXTINGUISHER.

APPLICATION FILED JULY 31,1911.

1,@3 958 Patented Sept. 17, 1912.

WITNESSES INVENTOR 0 M ZZMjZZUM C BY I A adjusting-screw to retain thestruts in their normal V-shaped position (F 4), until the bridge-platesare released and the struts.

allowed to fall away, when rise in the temperature of the surroundingair fuses the solder securing the bridge and bindingplates together, orfuses the struts when the latter are composed of easily fusible materialallowing the bridge to break apart, the struts to fall away, and thevalve 2 to be forced from its seat by the pressure of the water, asshown in the diagrami'natic view Fig. 1et.

It will be noted that I construct my sprinkler head with a circular bodyhaving a fiat central portion surounded by a pe ripheral concavo convexrim extending above and below said central portionand constituting anannular arched hood or deflector disposed above and overhanging theoutlet opening of the sprinkler, and that I provide said head and rimwith a great .number of perforations, so placed that the water can flowin all directions therethrough so that obstruction to its free fiowisreduced to 'a minimum, and I am enabled to insure a thorough and uniformdistribution of water over the entire surface within a considerableradius. This is a novel, useful and Very important feature.

I claim:

1. In a fire extinguisher a valve releasing device consisting of twostruts arranged n V-form, the apex of said V arranged to be seated in asimilar shaped groove located on the valve cap, and the opposite ends ofsaid struts connected by a bridge composed of plurality of bridgemembers positioned with their adjacent edges a distance apart,

and said members held in position by one or more binding-plates securedthereto by so1 der fusible at a lower temperature and arranged toseparate and fall apart and thereby release the valveupon the fusing ofthe solder by calefaction of the surrounding atmosphe're.

said 'alve top and provided with a V-shaped groove extending across thesame, two struts arranged in V-form with the apex of the V seated insaid groove and the opposite ends of said struts connected by a bridgecomposed of a plurality of bridge members disposed with their adjacentedges a dis- ,tance apart, and held in position by one or nore bindingplates secured thereto by solder fusible at a lower temperature, athrust yoke arranged to engage said bridge members and anadjusting-screw operating through said head to hold the parts in posi--tion until the bridge members are allowed to separate upon the fusing ofthe solder connecting them.

3. In a fire extinguisher the combination with a base having an outletopening, of a circular sprinkler-head having a fiat central portion andan annular peripheral concaveconvex perforated rim surrounding andextending above and below said central portion and constituting anarched hood disposed above and overhanging said outlet opening. 7 v

FRANK J. QUICK. Witnesses: HENRY MARSH, Jr., JAooB HAHN.

